Oil burner



June 17, 1924. 1,497,829

H. J. ALLEN ET Al.

lOIL BURNER Original r'iied July l, 1922 3 sheetsheet 1 'wwf [z f- I l1l INVENTR.

Herman J. A2 len Marvl Lee BY A TT ORNE Y.

June 17, lw24. 1,497,829

H. J. ALLEN E1' AL OIL BURNER original med July l, 1922 s sheetssheet 2Y INI/ENTOR. Herman J. vAller: BY Marvin Lee Me/M YATTORNEY.

June 17, 1924` 1,497,829

y||. J. ALLEN ET Ai.

on. VBURNER original Filed July 1, 1922 a swans-sheet 5 'Herman J. AllenMarvin Lee BY 4 ATTORNEY.

Patented June 17, 1924.

UNITED STATES PATENT OFFICE.V

HERMAN J'. ALLEN AND MARVIN LEE, OF WICHITA, KANSAS.

OIL BURNER.

Application led July 1, 1922, Serial No. 572,220. Renewed Hay 2, 1824.

T all whom 'it may concern.'

.Be it known that we, HERMAN J. ALLEN and MARVIN Lun. citizens of theUnited States, residing at ,lVichitzn in the county of Sedgwick andState of Kansas, have invented certain new and useful Improvements inOil Burners. of which the following is a description. referring to thedrawings which accompany this specification.

Our invention relates to that type of oil burners in which through theemployment of a motor in operative combination therewith and .byelements rotated thereby, a centrifugal motion is accorded to the oiland air mixture and blown as an afomized spray upon the burner surfacesfor ignition purposes to then develop a horizontal and annular flame.Our type of burner may be employed in'lieu Iof the coal grates generallyemployed in hot air, steam. hot water and vapor-vacuum furnaces; it isespeci-ally designed however for use in domestic installations employingannular sections, vertically combined. Our burner and motor are combinedas a unit in the manufacture of the composite device.

Previous installations of. the general character described above haveproven objectionable in varied respects, for instance the properadjustment and control of the air supply has not been properly takencare of; the waste oil is recollected for storage in our invention andall packings and stuifing boxes eliminated thereby rendering the deviceoperable in a more perfect manner. Due to the inverted bell-shapedcharacter of the centrifugally operable oil throwing receptacle. certainrelations of a. fixed air' supply. oil reception and oil-air agitationare developed and whereby a primary co-v mingling is accomplished priorto meeting. the baffle plate and later permitted to follow the outwardlyflaring lines of the inverted bell in the centrifugal travel of theoil-air mixture and toleave same as a spray to meet a further air spraylikewisey cen- -trifugally functioning and adjustable features forcontrolling the volume of said secondary source of air supply.

Our burner very efficiently heats the furnace by directing the flame inan outwardly disposed annular flame in contra-distinction to burners ofthe central conical type or inwardly disposed horizontal type, a 5 majorportion of Whose heat units are lost 'porting elements l0 is 'threadedhub 20 of the through the flue without being absorbed by the walls ofthe furnace or heater.

There are no heat losses on account of sooty deposits, our burner underoperating conditions giving a smokeless flame, consequently labor costsof removing sooty deposits are entirely eliminated.

In the drawings, Fig. 1 shows a vertical section of' our improved burneras supported from adjustable leg elements and in combination with avertically disposed motor shown in elevation: allied features essentialto the operation of the burner mechanism are illustrated in section andin their -preferred arrangement in the combination. Fig. 2 is a top viewof Fig. 1 with the bellshaped deflector and heat protecting-elementremoved. Figs. 3 and 4 represent sectional views taken along the lines3*.3 and 4 4. Fig. 1 and looking respectively, in the direction of theirarrows. Similar numerals of reference indicate correspond` ing partsthroughout all the figures of the drawings.

Referring to the drawings; mounted upon a plurality of leg standards assupshown a horizontally disposed metallic plate 11 as a base or seat forthe burner. The legs 10 are threaded at 12 upon which are screwed unions13 and b v means of which the plate 11 is properly leveled andpositioned at a desired level within the firebox lof the furnace. Theperiphery 14 of the plate 11 closely approximates the shape and area ofthe firebox and packing,v(not shown) may be employed around the edge 14so as to prevent air currents from below rising upwardly towards theflame. A motor 15 supported on legs 16 resting in a central basesupporting casting-17 is centrally and vertically disposed beneath theplate 11 with the motor shaft 18 'in a vertical plane as disclosed. ITheshaft 18 is threaded at its end 1-9 to receive the casting seen in Fig.1 which includes radially extending fins 21 and upon which ahorizontally disposed baffle plate 22 rests and is secured by the locknut 23 engaging the threaded end 19 of the shaft 18. It will thus beseen that the parts 20, 21. 22 and 23 are adjustable from or towards themotor for purposes later explained. The plate with asbestos 24 or othersuitable material. At 25- is shown an inverted be1l-shaped ele- 11 iscovered ment which is bolted as at 26 to outer flange elements 27 of thefins 21. It. will here l be noted that the circumference of the baffle"plate 22 does not quite reach to meet the bell element 25 thusproviding an annular passage 28 for oil and air fiow. as laterexplained. A plurality of radially extending fins or wings are formed asat 29 on the upper and outer surface of the bell element 25. A circularopening is centrallyv formed in the sheets 11 and 24 at 30 thus ycurledupwardly to form a trough element of annular character as shown at 31.

posited into said A casting 32 is bolted as at 33 to the top end of themotor 15 and isprovided with an annular ringportion 34 to receiveunburnt oils as later explained and from which outwardly leads to astorage tank (not shown) a pipe 35 for carrying away the unburnt oils ascollected in the annular ring portion 3 4. j An L shapedtubular element36 is cast `integral with the member 32, the oil supplylpipe 37 engagesthe L element 36; a pipe 38 leads away from the L 36 and its upper endis bent towards the trough 31 so that incoming oil is first detrough 31of the motor driven bell element 25. 1t will also be noted that. thefins 21 are likewise in rotation and air entering the opening in thebase of the bell 25 mingles with the oil flow centrifugally travelingupwardly and outwardly past the passageway 28; it will here be noted owthe inverted fiaring edge portion of the bell 25 extendingbeyond thebaffle plate 22 serves to s till support and control the oilair mixtureprior to casting it youtwardly for burner consumption.

Concentric with and supported by the elements 11-24 i's shownthe-circular disc or metallic plate 39, whose flanged periphery 39xseats upon the plate 1124 and its cen- .tral yportion being cut away toprovide an ope ...equivalent to the opening 30, is A:form as an annulartrough element 40 fromwhich leads a pipe 41 to carry unburnt oils thatmay be collected in the trough 40 into the trough 3 4 for'storagedisposal. An asbestos covering 42 upon the plate-39 comletes" the burnerinstallation, proper. It

ing however noted that the periphery' of the covering 42 is above theperiphery of the inverted bel 25, while the lower or central portion ofthe dish-shaped plate 39 is arranged at a` lower level than theperiphery ofl the bell 25.

Arranged above and concentric therewith is shown a bell shaped elementcomprising a horizontal base plate 43, a bell shaped element 44supported by and bolted to the plate 43 as at 45 and having a centralthreaded hub portion engaging for adjustment purposes abolt 46 dependingfrom an'upper portion of the rebox of the furnace (not shown). A secondbell shaped element 47 covered by asbestos covering 48 caps the firstmentioned element 44 to provide an air spacing 49. The plate 43 isfaced-with asbestos 50. j

v The opening 30 may be restricted in size or otherwise closed orpartially closed for major adjustment purposes; by means of theadjustments 20-23, the bell 25 may be raised or lowered in the opening30 thus enlarging ordecreasing the air passage leading to the fanelements 29 which force this adjusted air current to mingle with thefirst mentioned air-oil current as centrifugally cast from the upperperiphery of the bell 25 towards the periphery of the burner coveringsorbed by the asbestos 42 flow back through 40-41--34 and pipe 35 tostorage.

The bell elements 43-49 insulate the bell 28 and its oil-airspray sothat the vaporization takes place in the outer annular ring where theignition takes place. It will be especially'noted that the position ofthe baffle plate 22 serves to prevent oil striking the plate 43, whileassisting in conducting the flow of. air-oil mixture upon the innersurface of. the bell 25 for centrifugal horizontal casting purposes.- j

The asbestos covering 42 is relatively hard 42. Such oils as are notburned or ab and compact and is covered around its periphery by4 anannular ring 51 of absorbing asbestos as a wick like element.

In addition to the adjustment-s 20-23 mentioned above' for controllingthe size oftheopening 30, we may. employ the auxiliary and positivelyacting damper mechanism illustrated in Figs. 1 and 4, wherein theopening 30 is shownfully closed, the only passage being that through theopening 31x through the base of the inverted bell-shaped device 25. 'y

Referring to Figs. 1 and 4, the damper comprises two sections 52 and 53,preferably of sheet metal, each pivoting on the bolt 54 attached to theplate 11v and against :which they are arranged to slidably be moved aslater shown. These sect-ions 52 and 53 are .shaped to fit around thebell device -25 and spective sections52 and 53 as illustrated so thatwhen the bar 56 is inwardly moved, the sections 52 and 53 will pivotoutwardly to their ultimate o1' dotted positions 52* and 53". and inwhich position, the opening 30 will be fully and4 entirely uncovered topermit maximum air passage. j

It is thus apparent that any desired area may be given the opening 30intermediate that of zero and maximum areas; while the adjustments at 20 and 23 operate to accomplish a similar purpose with the additionalfeatures of adjusting the angle of centrifugal spraying action to bestfunction with the bell device .43 and asbestos ring 51 for burner puroses. l

Having ully described our invention and reserving the right to make suchfurther modifications as lie within the scope of the appended claims, wedesire to secure by Letters Patent:

- 1. In an oil burner, a motor, a vertical shaft rotatable by saidmotor; a hub adjustably carried by the upper portion of said shaft abovethe motor, fins radiating from the hub; a baiie plate supported upon andrigid to said fins; an inverted bellshaped device, having an air port atits base and an oil trough adjacent thereto, rigid with said fins, theupper portion of said bell-shaped device extending above and be-` yondsaid baffle plate and an annular passage intermediate said device andbaille plate.

2. In an oil burner, a motor. a vertical shaft rotatable by said motor;a hub. adjustably carried bythe upper portion of said shaft above themotor, fins radiating from the hub; a batile plate secured above thefins; an inverted bell-shaped device -having an air port at its basesurrounding the motor shaft, an oil trough formed byupturned lower edgeportions of said device. an oil supply leading to said trough and wingsoutwardly radiating from the exterior surfaces of said invertedbell-shaped device; the upper'portion of said bell-shaped deviceextending above and beyond said baiplate and an annular passagewayintermediate said device and baffle plate.

3. In an oil burner. an inverted bellshaped device rotatably operable,an air port therein andI an inner concentric oil trough adjacent saidport: an annular plate concentric with said device, an annular troughunderlying the periphery of the device; means for adjustably positioninthe device from or towards said plate an for adjusting thereby' anauxiliar);7 air intake space intermediate said plate and the dewardlybeyond said baffle plate and an annular passage therebetween; an annularplate concentric with said shaft, an annular air passage between saidinverted bell shaped device and said annular plate and susceptible toadjustment as to air capacity through the vertical adjustment of saidhub supported bell shaped device: an annular trough on said annularplate underlying the periphery of said inverted bell shaped device, anoil exit pipe leading therefrom: and means for supporting said foregoingelements in coacting relationship for the.

purposes specified.

5A. In an oil burner. a motor, a vertical shaft operable thereby: a hubadjustably mounted on said shaft, fins rigid with said hub. a baffleplate supported by said fins; an inverted bell-shaped device. having anair port in the base thereof. carried by said.

tins and an oil trough in said device adjacent said air port; an oilsupply pipe leading to said trough; wings, outwardly radiating. rigidwith said device; the upper portion of said device extending upwardlyand outwardly beyond said bale plate and an annular'passagetherebetween; an annular plate concentric with the shaft and coveredwith asbestos terminating in an annular asbestos wicking; an'annularpassage intermediate the bell-shaped device and said annular plate, anannular trough adleading therefrom; land pivotally acting damper meansfor adjustably'opening and closing said annular poses specified.

HERMAN J. ALLEN. MARVIN LEE.v 1

passage for the pur- 10:5.y jacent said annular passage, an oil exitpipe

